You know what they say — if you don’t change, you die. Despite the positives of forward momentum, we’re willing to bet diehard Diet Pepsi drinkers might be a bit upset to know that the soda is changing up its sweetener. PepsiCo swears the taste will remain the same as the one aspartame brings to the game (had to do it), but now the soda will last longer on the shelf. [More]